Please download proper USB driver according to your device.

GH-625XT:     Windows     Mac 10.1 ~10.5     Mac 10.6 以上    

GB-580:         Windows    

GB-1000        Windows

GH-207:        Windows

GH-209:        Windows


PCtool for uploading data (Execute PCTool.exe after decompressing rar file)

Windows     Mac


User manual

Website instruction